What’s Vulnerable › Vulnerabilities

CVE-2018-8841

• Severity: high (CVSS 7.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-05-15 · updated 2026-06-17
• Weakness: CWE-269

Description

In Advantech WebAccess versions V8.2_20170817 and prior, WebAccess versions V8.3.0 and prior, WebAccess Dashboard versions V.2.0.15 and prior, WebAccess Scada Node versions prior to 8.3.1, and WebAccess/NMS 2.0.3 and prior, an improper privilege management vulnerability may allow an authenticated user to modify files when read access should only be given to the user.

Affected products

• Advantech WebAccess: through 8.2_20170817; through 8.3.0
• Advantech Webaccess/Nms: through 2.0.3
• Advantech Webaccess Dashboard: through 2.0.15
• Advantech WebAccess SCADA: before 8.3.1 — fixed in 8.3.1

How to fix

Upgrade to a fixed version: Advantech WebAccess SCADA 8.3.1. Check the vendor advisory for mitigations.

References

• http://www.securityfocus.com/bid/104190
• https://ics-cert.us-cert.gov/advisories/ICSA-18-135-01
• http://www.securityfocus.com/bid/104190
• https://ics-cert.us-cert.gov/advisories/ICSA-18-135-01

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